Topic

AI

Everything we publish on AI: the models we run on our own machines, what the tools send home, the benchmarks we measure ourselves and the claims we check against the code. Start with the investigations, then the guides.

What the anonymous ARC-AGI-3 API key gets youapi
Guides

What the anonymous ARC-AGI-3 API key gets you

The ARC-AGI-3 API key you get without asking: what the anonymous key can do, what registering adds, and the 600…

5 min
Build your own ARC-AGI-3 game with arcengine in 13 linesarc-agi-3
Guides

Build your own ARC-AGI-3 game with arcengine in 13 lines

A working ARC-AGI-3 game in 13 lines of Python on arcengine: the class, the camera, two levels, step(), the on-disk…

6 min
Write your first ARC-AGI-3 agent in 40 lines of Pythonagents
Guides

Write your first ARC-AGI-3 agent in 40 lines of Python

A 40 line ARC-AGI-3 agent in Python that survives resets, converts action ids, handles clicks and scores locally. Every guard…

6 min
A random agent on all 25 ARC-AGI-3 games: 12 clears, no scoreagents
Guides

A random agent on all 25 ARC-AGI-3 games: 12 clears, no score

An ARC-AGI-3 random agent ran 60,000 actions on all 25 public games: twelve first levels cleared, two second levels, about…

5 min
Why GameAction(1) fails in the ARC-AGI-3 toolkitarc-agi-3
Guides

Why GameAction(1) fails in the ARC-AGI-3 toolkit

GameAction(1) raises ValueError in the ARC-AGI-3 toolkit though ACTION1.value is 1. Why the GameAction enum rejects its own value, and…

6 min
All 25 public ARC-AGI-3 games compared, from sourcearc-agi-3
Research

All 25 public ARC-AGI-3 games compared, from source

All 25 public ARC-AGI-3 games downloaded and compared from source: lines of code, levels, action sets, human baselines, and what…

5 min
How an ARC-AGI-3 game runs: ARCBaseGame from sourcearc-agi-3
Research

How an ARC-AGI-3 game runs: ARCBaseGame from source

ARCBaseGame is the 593 line class every ARC-AGI-3 game inherits. The action loop, why RESET means two things, and the…

6 min
What is inside an ARC-AGI-3 game filearc-agi-3
Research

What is inside an ARC-AGI-3 game file

We opened an ARC-AGI-3 game file: 2,060 lines of runnable Python with 26 of 34 functions renamed to random letters.…

5 min
ARC-AGI-3 offline mode: run the games with no API keyarc-agi-3
Guides

ARC-AGI-3 offline mode: run the games with no API key

ARC-AGI-3 offline mode runs the public games from disk with no key and no network. The four operation modes read…

6 min
ARC-AGI-3 is not saturated: which number to believeagents
Research

ARC-AGI-3 is not saturated: which number to believe

Is ARC-AGI-3 saturated? Three numbers are circulating as a solved benchmark, and only one compares systems. Which set, which harness,…

6 min